z == JacobiSD[w, m] /; w == InverseJacobiSD[z, m]

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<math xmlns='http://www.w3.org/1998/Math/MathML' mathematica:form='TraditionalForm' xmlns:mathematica='http://www.wolfram.com/XML/'> <semantics> <mrow> <mrow> <mi> z </mi> <mo> &#10869; </mo> <mrow> <mi> sd </mi> <mo> &#8289; </mo> <mo> ( </mo> <mrow> <mi> w </mi> <mo> &#10072; </mo> <mi> m </mi> </mrow> <mo> ) </mo> </mrow> </mrow> <mo> /; </mo> <mrow> <mi> w </mi> <mo> &#10869; </mo> <mrow> <msup> <mi> sd </mi> <mrow> <mo> - </mo> <mn> 1 </mn> </mrow> </msup> <mo> ( </mo> <mrow> <mi> z </mi> <mo> &#10072; </mo> <mi> m </mi> </mrow> <mo> ) </mo> </mrow> </mrow> </mrow> <annotation-xml encoding='MathML-Content'> <apply> <ci> Condition </ci> <apply> <eq /> <ci> z </ci> <apply> <ci> JacobiSD </ci> <ci> w </ci> <ci> m </ci> </apply> </apply> <apply> <eq /> <ci> w </ci> <apply> <ci> InverseJacobiSD </ci> <ci> z </ci> <ci> m </ci> </apply> </apply> </apply> </annotation-xml> </semantics> </math>

Cell[BoxData[RowBox[List[RowBox[List["HoldPattern", "[", "z_", "]"]], "\[RuleDelayed]", RowBox[List[RowBox[List["JacobiSD", "[", RowBox[List["w", ",", "m"]], "]"]], "/;", RowBox[List["w", "\[Equal]", RowBox[List["InverseJacobiSD", "[", RowBox[List["z", ",", "m"]], "]"]]]]]]]]]]

2001-10-29